[Solved]-Automatically join missing data gaps in Highcharts JS-Highcharts

for this type of behaviour highstocks js should be used instead of highcharts js.

data: [
       [date.utc(2013,  0, 1), 1],
       [date.utc(2013, 1, 1), 2 ],
       [date.utc(2013, 3,  1), 4],
       [date.utc(2013, 4,  1), 5 ],
       [date.utc(2013, 5, 1), 6 ],
       [date.utc(2013, 6, 1), 7],
       [date.utc(2013,  7,  1), 8],
       [date.utc(2013,  8,  1),9],
       [date.utc(2013, 9, 1), 10],
       [date.utc(2013, 10, 1), 11],
       [date.utc(2013, 11, 1), 12]
      ]

live demo: http://jsfiddle.net/q2ksf/